So FYI to everyone who get segfault issue on FC8 or equivalent, the root caused of the problem is because your ISPConfig config file is not properly setup. Example in my case DNS Zone file is pointed in wrong folder.

So the solution to this is to change some permission, restart named and re-edit the DNS settings and magically it get saved this time.

Here is the step

1. Change permission on named, just to make sure permission is in place